2012, 32(5):435-443.

多巴胺改性UHMWPE粉末对环氧涂层韧性及摩擦性能的影响

1.?

1. 中国科学院宁波材料技术与工程研究所 宁波市海洋防护材料与工程技术重点实验室,宁波 浙江 315201

2.?

2. 中国科学院 研究生院,北京 100049

3.?

2. 万博manbetⅹapp_万博app怎么提钱太黑了_万博体育app3.0 苹果 固体润滑国家重点实验室,甘肃 兰州 730000

4.?

中国科学院宁波材料技术与工程研究所 宁波市海洋防护材料与工程技术重点实验室,宁波 浙江 315201

通讯作者: 乌学东, xdwu@nimte.ac.cn

收稿日期: 2012-05-21

基金项目: The project was supported by National High-Tech Research and Development Program of China (863) (2009AA034605), Ningbo Municipal Nature Science Foundation (2011A610098), Open Fund of the State Key Laboratory of Solid lubrication Chinese Academy of Sciences (1004&1104)and Innovation Team Project of Ningbo.
国家高技术研究发展计划项目(863)(2009AA034605)、宁波自然科学基金(2011A610098)、固体润滑国家重点实验室(万博manbetⅹapp_万博app怎么提钱太黑了_万博体育app3.0 苹果)开放课题(1004&1104)和宁波创新团队资助.

Effects of Dopamine-modifed UHMWPE Powders on the Toughness and Tribological Properties of Epoxy Coating

1.?

1. Ningbo Key Laboratory of Marine Protection Materials, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences,Ningbo 315201,China

2.?

2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

3.?

2. State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,Lanzhou 730000,China

4.?

Ningbo Key Laboratory of Marine Protection Materials, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences,Ningbo 315201,China

Corresponding author: WU Xue-dong, xdwu@nimte.ac.cn

Received Date: 21 May 2012

引用本文: 胡伟炜, 赵文杰, 曹慧军, 曾志翔, 张昕, 乌学东. 多巴胺改性UHMWPE粉末对环氧涂层韧性及摩擦性能的影响[J]. 摩擦学学报, 2012, 32(5): 435-443.

Citation: HU Wei-wei, ZHAO Wen-jie, CAO Hui-jun, ZENG Zhi-xiang, ZHANG Xin and WU Xue-dong. Effects of Dopamine-modifed UHMWPE Powders on the Toughness and Tribological Properties of Epoxy Coating[J]. TRIBOLOGY, 2012, 32(5): 435-443.

利用多巴胺氧化自聚合性质改性超高分子量聚乙烯(UHMWPE)粉末惰性表面,制备得到改性粉末,并添加于环氧树脂中制备成耐磨环氧涂层,同时与添加未改性UHMWPE粉末的环氧涂层对比.采用扫描电镜(SEM)、X射线光电子能谱(XPS)和红外光谱(IR)表征改性粉末表面形貌和化学元素状态,利用摩擦磨损试验机测试环氧涂层表面的摩擦系数和磨损率.结果表明:改性粉末表面黏附1层含极性基团的聚多巴胺,能够与环氧树脂发生反应而固化在涂层中,相容性增强.改性粉末表面O,C元素相对含量比较O/C和N/C值随改性时间延长而增大,在5 h时趋于稳定.当改性粉末添加量从6.7%增至20%时,环氧涂层的抗冲击性能增强,摩擦系数和磨损率随之降低,改善了涂层的摩擦学性能,而且效果优于添加未改性粉末的涂层.

关键词: UHMWPE, 多巴胺, 表面改性, 环氧树脂, 摩擦磨损性能, 韧性
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    多巴胺改性UHMWPE粉末对环氧涂层韧性及摩擦性能的影响

    胡伟炜, 赵文杰, 曹慧军, 曾志翔, 张昕, 乌学东